I'm also very disappointed to install ML on this laptop! Made my own 8Gb flash drive several times exactly following the guide lines and also following successful ways to no avail. It always gave me a black screen of death after the kext loading screen finished! (in Verbous mode) and also there wasn't any difference between verbous and normal boot. The screen went black, but when I pressed a key on the keyboard the flash LED blinked 3 times and went off again. Did the making procedure around 15 times with no luck!